So far, Apple is using the neural engine for its new FaceID feature that maps out the human face and passes the points that make up the shape of its face to its neural engine to be processed and recognised. Using artificial intelligence with a neural network, slight deviations of the points are acceptable so Face ID can still recognise you if you have accessories on like glasses, hats and facial piercings or hair. It will also detect when you are actively looking at the screen with your eyes opened. However, it failed on stage:

Using computer vision, the AI neural engine is also used for facial motion capture like with its animoji feature that maps a person's face to animated on screen characters' face emojis. It will probably be used for augmented reality as well as described in this article: https://www.wired.com/story/apples-neur ... ai-smarts/

It remains to be seen if they will use it for more artificial intelligence applications like what Huawei is planning to do as discussed in this other thread: viewtopic.php?f=13&t=2

Personally, I am impressed with the iPhone X as it has bested Samsung's Galaxy Note 8 and S8 in terms of artificial intelligence processing hardware. It even beat Huawei to the punchline. Now, it remains to be seen what Huawei can impress us with next month at the launch event of its Huawei Mate 10 - shall it be known as the Huawei Mate X now? At least they didn't skip number 9 with the Mate 9.